#import "XYZPerson.h"
#import "XYZShoutingPerson.h"


int main(int argc, char const* argv[]) {
  NSAutoreleasePool* pool = [[NSAutoreleasePool alloc] init];
  
  XYZPerson * person = [[XYZPerson alloc] init];
  XYZShoutingPerson * shoutingPerson = [[XYZShoutingPerson alloc] init];
  [person sayHello];
  [person saySomething: [NSString stringWithFormat: @"Hello %@ %d", @"dyldw", 2022]];
  [shoutingPerson sayHello];

  [pool drain];
  return 0;
}